Home / 3,128.41-4,692.62-2,540.62

Finding the Fourth Proportional to 3,128.41, 4,692.62 and 2,540.62

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Solution

The fourth proportional to 3,128.41, 4,692.62 and 2,540.62 is: 3,810.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.41 : 4,692.62 = 2,540.62 : x
  2. Step 2: Convert to fraction form
    3,128.41/4,692.62 = 2,540.62/x
  3. Step 3: Cross multiply
    3,128.41x = 4,692.62 × 2,540.62
  4. Step 4: Simplify right side
    3,128.41x = 11,922,164.22
  5. Step 5: Solve for x
    x = 11,922,164.22/3,128.41
  6. Step 6: Final answer
    x = 3,810.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.